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'(Nomodel.) 3 sheets-sheen 1. O. ZIMMERMNN 8u G. HAGEMANN.

PULPING ORDISINTEGRATING MACHINE. No. 537,260.

E emma Patented Apr. 9, 1895.

(No Model.)

- 3 Sheets-Sheet 2. 0. ZIMMERMANN 8v G. HAGEMANN.

Y PULPING ORDISINTEGRATING MACHINE.

Patented Apr. 9, 1895.

(No Modelr.) 3 Sheets-Sheet 43. 0. ZIMMBRYMANN 8v G. HAG-EMANN PULPING 0R DISINTEGRATING MACHINE. No. 537,260. Patented Apr. 9, 1895.

UNI-TED STATES`l PATENT *.rrrcn.

OTTO ZIMMERMANN AND GUSTAV HAGEMANN,'OF LUDWIGSHAFEN, GERMANY.

PULPING OR DlSlNTEGRATING MACHINE.

SFECIFICATON forming part of Letters Patent No. 537,260, dated April 9, 1895. Application led September l, 1894. Serial No. 521,941. (No model-l on-the-Rhine, Germany, have invented certain new and useful Improvements in Pulping or Disintegrating Machines; and we do hereby declare the following to bea clear and exact description of the invention.

Our invention has relation to pulping engines, and it has for its object certain improvements whereby the operation is carried ouin the Wet by centrifugal action, the fibers of the cellulose rapidly and thoroughly separ5 rated Without either reducing or otherwise injuring the same, and whereby a continuous circulation of the stuff to and from the separating or pulping devices can be maintained for any desired length of time, oruntil a final zo product of the desired degree of uniformity is obtained; whereby the construction of the engine is materially simplified, and the working parts thereof so arranged that ready access is had thereto at all times, as will now be 2 5 fully described,reference being had to the accompanying drawings, in which- Figure l is ahorizontal sectional view, and Figs. 2,V 3, and 4, sections taken respectively on lines A-B, E-F, and C-D, of Fig. l, of

3o a pulping engine embodyingour invention.

Figs. 4, 4:, 5, 6 and? are sections showing various forms of the apparatus.

Similar letters of reference indicate like parts wherever such may occur in the figures 3 5 of drawings just described.

The centrifugal pulping engine consists essentially of a suitable tank or trough, separating devices constructed and operating to perform the function of suction devices also,

4o means for supplying the necessary quantity of Water to said devices and for controlling such supply, and suitable discharge valves.

The tank or .trough T hereinafter referred to as the trough, illustrated in the drawings,

is of the general form of the trough of the rag engine known as theI-Iollander, and may be constructed'of yany suitabley material or materials, as wood .orrmetah or both, or, with the exception of theworking elements and 5o valves, of cement, bton, or on the Monier system.

We prefer the Hollander style of trough on account of the absence of dead points or angles in which the pulp is liable to settle, and by which the uninterrupted movement thereof to and from the separating devices is or would be interfered with. It will, however, be understood that we do not desire to limit ourselves to this construction or form of trough, as the latter may have any other desired or suitable form.

From the bottom of the trough T at the longitudinal center thereof rises a column C in which is formed an axial cylindrical passage g, whose upper end terminates below the like end of the column and carries a hollow ring c from which project hollow cylindrical pins d, arranged thereon in concentric rows. The pins may be open-ended or provided with peripheral perforations, or both, and centrally of the passage g is arranged a shaft Z that has its bearings in the bottom of the trongh,and at some suitable point above the same, said shaft carries a disk or wheel f provided with concentric rows of downwardly projecting cylindrical pins e.

The rows of pins d on the hollow or chambered ring c are so arranged as to project into the circular spaces between the rows of pins passage g of column C to lift the material from the trough to the said devices, but also thoroughly separates the fibers of the cellulose. lnasmuch as the aforesaid pins are cylindrical the ber operated upon is not reduced or cutup, or otherwise injured.

i In the` upper portion of the column C is formed a circular chamber/h, surrounding the separator cf, said chamber being divided into four compartments by partitions t, the compartments communicating by-separate passages la with the trough T at the foot of the column() on opposite sides thereof, said passages sloping downwardly and outwardly 4into the trough, as shown in Fig. 3. Y v V The' trough T, as shown in Fig. l, ls divided into three parts by a U-shaped partition t', and the passages 7c are so arranged as to lead IOO whereby a partial vacuum is produced Within the column, for the purpose set forth.

2. In a pulping engine, a trough divided into three compartments on opposite sides of a central column, said compartments in communication with one another at their outer ends, pulping or mixing devices comprising a stationary element on said column above the level of the pulp in the trough, and a revoluble element cooperating with said stationary element, and separate feed and delivery1 passages communicating respectively with the central and outer trough compartments on opposite sides of the aforesaid column and leading to and from the lpulping or mixing devices, in combination with means for supplyin g water under pressure to the last named devices whereby a partial vacu um is produced in the feed passages and a continuous circulation of the pulpy from and to the central compartments of the trough through the pulpving devices and outer compartments of such trough is established, for the purpose set forth. 3. In a machine of the class described, the combination with a trough provided with a vertical passage open at its upper end and communicating with said trough at its lower end, pulping or mixing devices at the upper end of said passage above the level of pulp in the trough comprising a stationary chambered disk provided with hollow perforated pins, d, a revoluble disk or wheel provided with solid pins intermeshing with the aforesaid pins d, and means for supplying water under pressure to the aforesaid chambered disk, for the purpose set forth.

4. The combination with atrough, a column, as C, projecting centrally from the bottom thereof, said trough divided on opposite sides of the column into three compartments comour names in the municating at their outer ends, said column provided with a vertical passage g leading to the central compartments of the trough and with a chamber. h encompassing the upper end of said passage, said chamber in communication with the outer compartments of said trough, of a chambered ring seated on said upper end of the passage above the level of the pulp in the trough and provided with tubular perforated pins, a ring or disk provided With solid pins intermeshing with those on the stationary ring, and means for supplying Water under pressure to the chambered ring, for the purpose set forth.

5. The combination with atrou'gh, a column, as C, projecting centrally from the bottom thereof, said trough divided on opposite sides of the column into three compartments communicating at their outer ends, said column provided with a vertical passage leading to the central compartments of the trough, and with a chamber encompassing the upper end of said passage above the level of pulp in the trough, said chamber divided into four compartments in communication with the outer compartments of said trough, of a chambered ring seated on said upper end of the passage and provided with concentric rows of tubular perforated pins, a revoluble disk having concentric rows of solid pins intermeshing with the rows of pins on the stationary ring, and means for supplying water under pressure to the chambered ring, for the purpose set forth.

In testimony whereof we have hereto signed presence of two witnesses. OTTO ZIMMERMANN. GUSTAV HAGEMANN. Witnesses:

FERDINAND NAUMBURG, F. ENGLER. 

